How to know if a particular device is in under mesh network or not?

[bivay]

I want to know status of each node in Mesh network.

If anyone fails a device(say client) sends a message on uart that particular node(server) is not connected.

[tesc]

Hi,

There are a couple of mechanisms in Bluetooth mesh that you can use for monitoring other nodes: Heartbeat, and the Health model.

If you want to monitor several devices you can use periodic Health model status messages. Both the Health Model and Heartbeat are supported by our nRF5 SDK for Mesh.

Regards,
Terje

[bivay]

I want to include an led for status of node. How node will decide that it is connected in Mesh or not.

According to condition I want to on led, if device is connected and off the led, when not connected.